January 07, 2020

Orioles  designate Eric Hanhold for assignment

Orioles  sign Jose Iglesias as a free agent

January 10, 2020

Orioles  designate Pat Valaika for assignment

Orioles  sign Cesar Valdez

January 17, 2020

Orioles  sign Mickey Jannis

January 28, 2020

Orioles  sign Bryan Holaday

Orioles  sign Taylor Davis

January 31, 2020

Orioles  designate Stevie Wilkerson for assignment

February 01, 2020

Orioles  sign Wade LeBlanc

February 14, 2020

Orioles  sign Tommy Milone

June 28, 2020

Orioles  place Trey Mancini on the injured list

July 14, 2020

Orioles  place Richie Martin on the injured list

July 22, 2020

Orioles  place Hunter Harvey on the injured list

Orioles  place Dillon Tate on the injured list

Orioles  place John Means on the injured list

July 31, 2020

Orioles  place Kohl Stewart on the injured list

August 01, 2020

Richard Bleier traded from Orioles  to Marlins 

August 10, 2020

Orioles  place Jorge Lopez on the injured list

Orioles  release Ty Blach

August 11, 2020

Orioles  place John Means on the injured list

August 15, 2020

Orioles  place Austin Hays on the injured list

August 18, 2020

Orioles  place Jose Iglesias on the injured list

August 25, 2020

Orioles  place Wade LeBlanc on the injured list

August 29, 2020

Orioles  place Shawn Armstrong on the injured list

August 30, 2020

Tommy Milone traded from Orioles  to Braves 

August 31, 2020

Miguel Castro traded from Orioles  to Mets 

September 01, 2020

Orioles  designate Mason Williams for assignment

September 04, 2020

Orioles  place Alex Cobb on the injured list

September 05, 2020

Orioles  place Anthony Santander on the injured list

September 12, 2020

Orioles  designate Mason Williams for assignment

September 14, 2020

Orioles  release Stevie Wilkerson

September 17, 2020

Orioles  designate Asher Wojciechowski for assignment

September 18, 2020

Orioles  release Rob Zastryzny

September 20, 2020

Orioles  release Mason Williams

September 22, 2020

Orioles  place Dillon Tate on the injured list

September 23, 2020

Orioles  place Evan Phillips on the injured list

October 28, 2020

Wade LeBlanc became a free agent

Bryan Holaday became a free agent

October 29, 2020

Orioles  sign Stevie Wilkerson

November 20, 2020

Orioles  designate Renato Nunez for assignment

November 23, 2020

Orioles  release Renato Nunez

November 25, 2020

Orioles  designate Thomas Eshelman for assignment

December 02, 2020

Jose Iglesias traded from Orioles  to Angels 

Hanser Alberto became a free agent

December 03, 2020

Orioles  sign Conner Greene

December 21, 2020

Orioles  sign Nick Ciuffo

Orioles  sign Fernando Abad